.tips_box{
    margin: 40px auto;
    width: 1000px;
    background: #fff;
    border-radius: 8px;
}
code{
    background: #333;
    width: 100%;
    box-shadow: none;
    color: #fff !important;
}
.code_box{
    background: #333;
    overflow: hidden;
}
.icon_item{
    width: 140px;
    height: 100px;
    margin: 10px;
    border: 1px solid #ddd;
    font-size: 12px;
    padding-top: 20px;
}
.icon_box{
    flex-wrap: wrap;
}